In mathematics, an integer is a whole number that can be either positive, negative, or zero. Integers do not include fractions or decimals.
What is an Integer?
An integer is a whole number that can be positive, negative, or zero. The set of integers is denoted by the symbol Z. Here are some examples of integers:
- Positive Integers: 1, 2, 3, 4, 5, ...
- Negative Integers: -1, -2, -3, -4, -5, ...
- Zero: 0
Is -7 an Integer?
Yes, -7 is an integer. It is a negative integer.
Why is -7 an Integer?
-7 is a whole number and it does not include any fractions or decimals. Therefore, it satisfies the definition of an integer.
Key Points
- Integers are whole numbers.
- Integers can be positive, negative, or zero.
- -7 is a negative integer and is a whole number, making it an integer.
Conclusion
In summary, -7 is indeed an integer because it is a whole number and falls within the set of integers.
